Attention-deficit/hyperactivity disorder (ADHD) is one of the most prevalent neurodevelopmental disorders without established biomarkers. Pupil diameter, regulated by the locus coeruleus-norepinephrine (LC-NE) system, and eye movements controlled by diverse brain regions exhibit specific patterns in patients with ADHD due to abnormal activity in these brain regions. Previous studies reported that patients with ADHD have larger pupil diameters and reduced temporal complexity. However, although…
